Spring structure.



F. P. DARGY. SPRING STRUCTURE. AHLIGATION FILED JAN. 12, 1914.

PatentedMay 5, 1914 afa, 5g

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A7.`I'RANK I. DARCYpOF KALMAZOO, MICHIGAN.

l vTovaZZ- wkoviwit may concern:

; *"Be'it'known that` I, FRANK P. DARGY, a

- citizen of the UnitedStates, residing at 'Kalamazom' Michigan, have invented certain-new'and useful Improvements in4 Spring Structures, of which the following is a s speciication-- This invention 'relates' to improvements in spring structures.

' he ob.`ect`s of this invention are: First,

to provide an improved spring structure in which helical or conical Vspi-ings are used which can be readily :transported in the knockdown and readily and quickly 'as' position without the use of separate connecting parts.

Further objects, arid objects relating to detailsand economies of construction and operation will definitely appear from the detailed description to follow.

I accomplish'the objects of my invention by the devices and means described in the following specification.

`The invention is clearly pointed out in the claims.

A structure embodying the features of :defined and my invention is clearly illustrated in the accompanying drawing forming a part ofthis specification', in which:

` Figure I is a perspective view yof a structureembodying the features of my invention. Fig. II is a top plan view of the same, the upper part of 'the spring being broken away Fig. III is a longitudinal sectional view on the line 3 3 of Fig. II.

Fig. IV is a transverse sectional view on4 the line 4-4 of Fig. II.

In the drawingvs-imilar reference characters refer to similar parts throughout the several views and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Considering the numbered parts of the drawing, 1 is a U-shaped supporting bar provided at the edges with the upturned flanges 2. l

3 is a slot in the upper part of the "U- shaped bar which is provided with the lip 4 over-hanging the slot. 5, 5 are openings in the sides of the U- shaped bar through which the end 7 of the conical springs 6 passes. The end 7 of the )Specification of Letters Patent. Application inea January 12, 1914.

SPRING STRUCTURE. 4

Patented May 5, i914. 'serial No. 811,575. l

spring is slightly offset downwardly and laterally and engages the inner side of a fiange 2 so as to pre ent its movement in either direction when secured in place. The dist-ance between the openings 5 and the slot 3 is about equal tothe -diameter of the coil, but the overhanging lip 4 extends toward the openings 5 so that the coil mustbe compressed to pass this lip and allow the coil to seat itself in the bottom of the slot 3. To secure the spring to the supporting bar, 'the end 7 is passed through the openings -5 untill it comes into engagement with the.

-1ng bar, inasmuch as vthe lip 4 prevents the spring from rising and a lateral or twisted movement is prevented by the offset end 7 engaging the ange 2.

It will be seen that I have secured a very strong and rigid connection for the springs,

and also a structure which can be easily put together by inexperienced workmen without the use of tools or other mechanical devices.

Furthermore the openings and slot in the supporting bar, which are provided in this structure, -can be very cheaply and easily produced by means of a punch.

I am aware that the particular embodiment which I have here shown is susceptible of considerable variation without departing from the spirit of my invention, and, therefore, I do not wish to be restricted to the same. However, I have found that this form .isto be preferred and I desire to claim the same specifically as well as broadly as indicated by the appended claims.

Having thus described my invention, what I claim; as new' and desire to secure by Letters Patent is:

1. In a spring structure, the combination 'of a U-shaped supporting. bar provided with upturned iiz'nges at the edges thereof, a conical spring having the eXtreme lower end thereof bent downwardly, a pair of openings in the sides of said U-shaped bar through which the end of said spring passes, a slot in said bar and alip overhanging said slot, the edge of the bottom coil of said spring being seated in said slot under tension beneath said overhanging lip. l

2. In a spring structure, the combination of a U-shaped supporting bar provided -with upturned flanges at the edges thereof, a

conical spring, a pair of openings in the sides of said U-shaped bar through which the end of saidspring passes, a slot in said bar and a lip overhanging said slot, the edge of the bottom coil of said spring being'seated in said slot under tension beneath said' overhangng lip.

3. In a structure of the class described, the combination with a U-shaped supporting bar, of a conical spring having the lower end thereof bent downwardly, a pair of openings in the sides of said U-shaped bar, through which the end of said spring passes, a slot in said bar and a lip overhanging said slot, the edge of the bottom coil of said spring being seated in said slot under tension beneath said overhanging lip. e

4. In a structure of the class described,4

the combination with a U-.shaped supporting bar, of a conical spring,'a pair of openings in the sides ofsaid Ushaped bar through which the end of said sring passesgas'lot vin said bar and a lip over 'angin saidslot, the edge of the bottom coil of sai spring being seated in said vslot under tensionjbeneath said overhanging lip. l

5; In a structure of the class descrihed,'the combination with a U-shaped ksupporting bar, of'a conical spring, a pair o-Openngs inthe sides of said' bar through which the end of said spring passes, and a' slot n'said bar in which the edge of the bottom *coil of) said spring is seated` under tension.

In witness whereof, I have hereunto set4 myhand and seal4 in the presence of two witnesses. f FRANK P. DARCY.: [La] Witnesses:

C. B. DES JARDINS,

LUELLA G. GREENFIBLD.

Copies of this patent may ne obtained for ve cents each, by addressing the Commissioner of Patente,

' Washington, D. C.

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